When i plug my power cable into my laptop it goes black ,if u shine a tourch my the screen u can still see the desk top but if i reboot with out the power cable it works fine only when i plug the adapter in it goes black any ideas ?
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I had problems with my laptop also. My screen would go black, backlight, I could see my screen if I shined a flashlight on the screen. If I opened the screen quickly I could get it to turn back on.
I replaced the inverter board, as mine was a cfl back light for a lcd. Inverter was weak. That helped but I still had some problems with screen not turning on. I found that I had a magnetic lid close switch. I took a magnet and ran it around the edge of the laptop until I located the switch, would turn off the screen. I rubbed circles with the magnet above the switch, med powered magnet from a magnetic screw holder bowl. So far my laptop shut off problem seems to be fixed. Working very well.
Before I ran the magnet over the switch my computer would also shut off when I pulled out the AC plug. Stopped after magnet. I think something gets magnetized and causes problems and magnet corrects problem. You might try this, couldn't hurt.
If you have access to a desk top computer monitor, plug it into the side port on the laptop. (usually a blue port) and see if you have a video signal. If the Desk Top Monitor functions, and the Laptop is black; your Laptop screen is NG.
The back light is the whole of the screen, the screen is illuminated by a CCFL lamp (fluro tube) on the bottom of the screen. A inverter supplies high voltage to this CCFL lamp. If
your laptop appears to boot up and the hard disk LED flashes, then the
problem is probably a back light fault. This can be a faulty inverter or a
faulty CCFL lamp. Please click on this link and follow my instructions
to identify the fault and possible fix :- http://www.fixya.com/support/r3598095-faulty_laptop_lcd_screen
Does your laptop have its lights on the keyboard even if your screen is black? If it is , try to remove the cables and battery of the laptop. Press and hold the power button for 8 seconds. Then reinsert the cables and battery on the laptop. Turn on the laptop, and if there is no light on screen & keyboard, it means that the power supply or the motherboard has trouble. That is the time to contact Dell support for possible repair or replacement. Otherwise if the keyboard has lights but the screen is still black, that would be a video card problem since the LCD screen is not a separate entity. Just make sure if it has the power button on the screen, it is turned on. That instance would need a video card replacement...
you have a dim screen issue. First make sure the LCD cable in unseated and reseated to the LCD and to the motherboard, if that doesn't do it, then its going to be a problem with the LCD or the inveter that supplies the voltage to the LCD.
Sounds like your display inverter has gone bad. You should be able to find an inverter for this model or if the computer is still under warranty I would find an authorized repair center for this brand of computer.
hi, u have to plug in the external monitor in a switched off mode, when powered on, the system will automatically detect the monitor and u will see the display, if there is no display even on the external monitor then u will have to check the laptop.. let me know